ABAP程序并行处理

• CASE1. 程序中 start new task ,并在后面获取处理结果

  *"----------------------------------------------------------------------
  *"*"本地接口：
  *"  IMPORTING
  *"     VALUE(IS_NAST) TYPE  NAST
  *"  EXPORTING
  *"     VALUE(CV_SUBRC) TYPE  SY-SUBRC
  *"----------------------------------------------------------------------
  DATA:IV_FUNCNAME    TYPE    RS38L_FNAM.
    DATA et_return   TYPE TABLE OF bapiret2.
    DATA et_pro_stru TYPE TABLE OF zif_pro_structure.
    DATA lt_bapiret2 TYPE TABLE OF bapiret2.
   
        CALL FUNCTION 'ZIF_FUNC_CALL' STARTING NEW TASK is_nast-objky
          PERFORMING frm_function_recevie_data ON END OF TASK
          EXPORTING
            iv_funcname = lv_funcname
            iv_zproid   = ls_pro-zproid
            is_nast     = is_nast
          TABLES
            rt_bapiret2 = lt_bapiret2[].
   
  FORM frm_function_recevie_data  USING ck .
   
    DATA: lt_bapiret2 TYPE TABLE OF bapiret2 .
   
    RECEIVE RESULTS FROM FUNCTION 'ZIF_FUNC_CALL'
      TABLES
        rt_bapiret2       = lt_bapiret2
      EXCEPTIONS
        communication_failure =
        system_failure        =
        .
   
    gt_bapiret2 = lt_bapiret2 .
    gv_done     = 'X'.
   
  ENDFORM.

  说明：转自 https://www.cnblogs.com/jiangzhengjun/p/4265586.html

• 20.1.2.             RFC函数：远程调用

  20.1.2.1.       同步

  CALL FUNCTION func [DESTINATION dest]  [?desti?nei??n]

  （在DESTINATION不省略的情况下，且dest取值又不为SPACE，则函数一定要是RFC函数才能采用此方式进行远程同步调用）

  20.1.2.2.       异步

  CALL FUNCTION rfm_name STARTING NEW TASK [DESTINATION dest]taskname PERFORMING return_form ON END OF TASK
   
  FORM return_form USING taskname.
    ...
    RECEIVE RESULTS FROM FUNCTION rfm_name
    ...
  ENDFORM.

  等待多个异步调用的返回结果：WAIT UNTIL log_exp [UP TO sec SECONDS].

  异步调用时不能有IMPORTING参数；函数一定要是RFC函数才能采用异步调用；只要有STARTING NEW TASK选项，即为异步调用；如果是异步调用同一目标端的RFC函数，则可以省略DESTINATION